Home / 31,577.24-43,575.06-18,145.42

Finding the Fourth Proportional to 31,577.24, 43,575.06 and 18,145.42

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Solution

The fourth proportional to 31,577.24, 43,575.06 and 18,145.42 is: 25,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,577.24 : 43,575.06 = 18,145.42 : x
  2. Step 2: Convert to fraction form
    31,577.24/43,575.06 = 18,145.42/x
  3. Step 3: Cross multiply
    31,577.24x = 43,575.06 × 18,145.42
  4. Step 4: Simplify right side
    31,577.24x = 790,687,724.33
  5. Step 5: Solve for x
    x = 790,687,724.33/31,577.24
  6. Step 6: Final answer
    x = 25,039.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.